def describe_pet(animal_type,pet_name):
    """Show your pets' information"""
    print(f"\nI have a {animal_type}")
    print(f"My {animal_type}'s name is {pet_name.title()}")

describe_pet(animal_type='hamster',pet_name='harry')
describe_pet(pet_name='harry',animal_type='hamster')
#在关键字实参中，顺序无关紧要，但是形参名一定要准确指出
